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A Manganese(III) Complex That Exhibits Spin Crossover Triggered by Geometric Tuning
Author(s) -
Morgan Grace G.,
Murnaghan Kevin D.,
MüllerBunz Helge,
McKee Vickie,
Harding Charles J.
Publication year - 2006
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200601823
Subject(s) - spin crossover , crossover , manganese , population , spin (aerodynamics) , elongation , spin states , oxygen evolution , chemistry , condensed matter physics , crystallography , physics , materials science , thermodynamics , metallurgy , computer science , demography , organic chemistry , electrode , sociology , artificial intelligence , ultimate tensile strength , electrochemistry
Room to expand: A rare example of thermal spin crossover in a Mn III complex is accompanied by elongation of the bonds to the equatorial N 4 donor set upon warming (see scheme; Mn purple, N blue, O red), which is consistent with population of the d x 2 − y 2orbital. The spin crossover was observed for an N 4 (O − ) 2 donor set with axial oxygen donors, whereas only a temperature‐independent high‐spin state was observed with these donors in a cis arrangement.